<?php
namespace app\common\lib;
/**
*
* 汉字转拼音类
* @Author : Kin
* @Date   : 2014-03-16
* @Email  : Mr.kin@foxmail.com
*
*/
class ChinesePinyin
{
    //utf-8中国汉字集合
    private $ChineseCharacters;
    //编码
    private $charset = 'utf-8';
    public function __construct()
    {
        if (empty($this->ChineseCharacters)) {
            $this->ChineseCharacters = file_get_contents(ROOT_PATH . DS . 'app' . DS . 'common' . DS . 'lib' . DS . 'ChineseCharacters.dat');	
        }
    }
    /*
    * 转成带有声调的汉语拼音
    * param $input_char String  需要转换的汉字
    * param $delimiter  String   转换之后拼音之间分隔符
    * param $outside_ignore  Boolean     是否忽略非汉字内容
    */

    public function TransformWithTone($input_char,$delimiter=' ',$outside_ignore=false)
    {
        $input_len = mb_strlen($input_char,$this->charset);
        $output_char = '';
        for ($i=0;$i<$input_len;$i++) {
            $word = mb_substr($input_char,$i,1,$this->charset);
            if(preg_match('/^[\x{4e00}-\x{9fa5}]$/u',$word) && preg_match('/\,'.preg_quote($word).'(.*?)\,/',$this->ChineseCharacters,$matches) ){
                $output_char.=$matches[1].$delimiter;
            } else if(!$outside_ignore) {
                $output_char.=$word;
            }
        }
        return $output_char;
    }

    /*
    * 转成带无声调的汉语拼音
    * param $input_char String  需要转换的汉字
    * param $delimiter  String   转换之后拼音之间分隔符
    * param $outside_ignore  Boolean     是否忽略非汉字内容
    */	
    public function TransformWithoutTone($input_char,$delimiter='',$outside_ignore=true)
    {
        $char_with_tone = $this->TransformWithTone($input_char,$delimiter,$outside_ignore);
        $char_without_tone  =  str_replace(
            array('ā','á','ǎ','à','ō','ó','ǒ','ò','ē','é','ě','è','ī','í','ǐ','ì','ū','ú','ǔ','ù','ǖ','ǘ','ǚ','ǜ','ü'),
            array('a','a','a','a','o','o','o','o','e','e','e','e','i','i','i','i','u','u','u','u','v','v','v','v','v'),
            $char_with_tone
        );
        return $char_without_tone;
    }
    /*
    * 转成汉语拼音首字母
    * param $input_char String  需要转换的汉字
    * param $delimiter  String   转换之后拼音之间分隔符
    */
    public function TransformUcwords($input_char,$delimiter='')
    {
        $char_without_tone = ucwords($this->TransformWithoutTone($input_char,' ',true));
        $ucwords = preg_replace('/[^A-Z]/','',$char_without_tone);
        if (!empty($delimiter)) {
            $ucwords = implode($delimiter,str_split($ucwords));
        }
        return $ucwords;
    }
}